Step 1 :-
While you are in the game
Use your keyboard by pressing PrtSc (Print Screen)
Step 2 :-
Go to your Boutcheetah Main Folder ----->Screenshot folder should be there , open it and you will find your Screenshot
Easy way
Another way
Step 1 :- While you are in the game
Use your keyboard by pressing PrtSc (Print Screen)
Step 2 :- Open Paint Program
Step 3 :- Choose the past option or press (Ctrl + v )
Step 4 :- Save your picture wherever you want!
to add pictured to the forums do as they said the image hosting site thingy
OR
click on "Additional Options..."
Belo it you will find attach "choose file" and you are done